Shiningbeam caveman: worklight, 5-10 times every shift
EOS: carkeys light: 1-2 times a month
Shiningbeam S-mini: bedside light 1-2 times a week
Trustfire R5-A3: EDC kit, 3-4 times a year
Romisen RC-T602 and HD2010: kitchen lights, (searching for things, etc.) , several times a month
the rest (10-15 lights) just for fun.